[#DES_ofb_encrypt]
= DES_ofb_encrypt
:mrdocs:

Encrypt or decrypt with DES in OFB mode with a configurable bit width (deprecated; prefer EVP).

== Synopsis

Declared in `<openssl/des.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
[[deprecated]]
void
DES_ofb_encrypt(
    unsigned char const* in,
    unsigned char* out,
    int numbits,
    long length,
    xref:DES_key_schedule.adoc[DES_key_schedule]* schedule,
    xref:DES_cblock.adoc[DES_cblock]* ivec);
----

[WARNING]
====
https://en.cppreference.com/cpp/language/attributes/deprecated[Deprecated^]. Use of this entity is allowed but discouraged.
====
== Parameters

[cols="1,4"]
|===
| Name| Description
| *in*
| Input bytes of length `length.`
| *out*
| Output buffer of length `length.`
| *numbits*
| Number of bits of keystream consumed per step (1..64).
| *length*
| Number of bytes to process.
| *schedule*
| Expanded DES key schedule.
| *ivec*
| 8‐byte IV updated in place.
|===


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